header{
    .video{
        width: 100%;
        height: 300px;
        background-color: black;
    }
    .iconfont{
        top: 10px;
        left: 5px;
        font-size: 30px;
        font-weight: bold;
        color: #fff;
    }
}
// 遮罩层1
.mask1{
    display: none;
    height: 100%;
    // 上面节数
    .mask-top{
        height: 585px;
        background-color:#e8e8e8;
        .splot{
            bottom: 30px;
            left: 25px;
            h1{
                font-size: 50px;
                font-weight: normal;
                margin-bottom: 10px;
            }
        }
    }
    // 下面操作
   .mask-bottom{
        padding: 25px;
        height: 50px;
        span{
            flex: 1;
            text-align: center;
            // align-items: center;
            // align-content: center;
        }
        .iconfont{
            font-size: 30px;
        }
    
   }
}
// 遮罩层2
.mask2{
    display: none;
    height: 667px;
    padding: 25px;
    font-size: 15px;
    background-color: #1e96cd;
    color: white;
    .title{
        margin-top: 20px;
        font-size: 18px;
    }
    // 继续 结束按钮
    .btn{
        margin-top: 180px;
        justify-content: space-around;
        .circle{
            width: 90px;
            height: 90px;
            border-radius: 50%;
            color: white;
            display: inline-block;
            display: flex;
            align-items: center;
            span{
                font-size: 14px;
            }
            .iconfont{
                    font-size: 30px;
                    margin-top: 15px;
                }
            &#puseBtn{
                background-color: #79f0c2;
            }
            &#endBtn{
                background-color: #ff6060;
            }
        }
    }
    // 当前节
    section{
        width: 200px;
        height: 70px;
        margin: auto;
        margin-top: 60px;
        border: 1px solid #e8e8e8;
        border-radius: 10px;
        div{
            flex: 1;
            &.pic{
                border-radius: 10px 0px 0px 10px;
                background-color: #e8e8e8;
                .iconfont{
                    line-height: 70px;
                    font-size: 20px;
                    color: gray;
                }
            }
            &.text{
                padding-top: 10px;
                span{
                    font-size: 12px;
                    color: #e8e8e8;
                }
                p{
                    font-size: 14px;
                    margin-top: 10px;
                }
            }
        }
    }
}
// 内容
main{
    padding: 0px 10px;
    .title{
        margin-top: 10px;
        padding-bottom: 10px;
        h3{
            font-size: 20px;
            line-height: 40px;
        }
        border-bottom: 1px solid #ccc;
        justify-content: space-around;
        .summary{
            justify-content: space-between;
            .status>div:nth-of-type(1){
                margin-right: 30px;
            }
        }
    }
    .user{
        padding-top:15px;
        .pic{
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background-color: yellow;
            img{
                width: 70px;
                height: 70px;
                border-radius: 50%;
            }
        }
        .username{
            margin-left: 10px;
            justify-content: space-around;
        }
    }
    .explain{
        margin: 20px 0px;
        height: 40px;
        line-height: 20px;
        width: 100%;
        overflow: hidden;
    }
    .instructions{
        h4{
            line-height: 30px;
        }
        .practice{
            padding-left: 20px;
        }
        .equipment{
            padding-left: 20px;
            border-left: 1px dashed #ccc;
        }
    }
    button{
        width: 90%;
        height: 40px;
        background-color: #4294ff;
        border-radius: 20px;
        color: #fff;
        margin: 0 auto;
        margin-top: 20px;
    }
}